AI 中文总结
该研究在混合电磁子系统中，利用驱动相位补偿耦合不对称性，实现鲁棒非经典磁振子对产生与柯西-施瓦茨不等式违反，为相位可控的磁振子量子信息处理提供支持。
AI 中文摘要
磁振子系统因能显著耦合不同量子平台，成为量子技术的有前途资源，且通过磁振子阻塞产生非经典磁振子态的研究日益受关注。但实际中，磁振子阻塞依赖相消干涉，易被制备导致的耦合不对称性破坏。本文表明，两个磁振子驱动场的相对相位可作为主动补偿旋钮，即使耦合不匹配也能恢复该干涉。我们研究混合系统中的两个基特尔（Kittel）磁振子模式，该系统中与共同腔模耦合的超导量子比特介导模式间相互作用，发现调控驱动相位可同时实现磁振子阻塞和经典柯西-施瓦茨不等式的强违反。我们推导了补偿给定耦合不对称性的相位解析条件，并通过精确数值模拟验证了该条件。驱动相位因此作为控制旋钮，使系统在经典和量子区域间切换。我们的结果支持相位可控的磁振子量子信息处理。
英文摘要
Magnonic systems are a promising resource for quantum technologies because of their ability to couple significantly disparate quantum platforms and the generation of nonclassical magnon states through magnon blockade has attracted growing attention. In practice, however magnon blockade relies on a destructive interference that is easily spoiled by fabrication-induced coupling asymmetries. Here we show that the relative phase between two magnon drives acts as an active compensation knob that restores this interference even when the couplings are mismatched. We study two Kittel magnon modes in a hybrid system in which a superconducting qubit coupled to a common cavity mode mediates the inter-mode interaction and we find that tuning the drive phase produces both magnon blockade and a strong violation of the classical Cauchy--Schwarz inequality. We derive the analytic condition for the phase that compensates a given coupling asymmetry and confirm it against exact numerical simulations. The drive phase thereby serves as a control knob that switches the system between classical and quantum regimes. Our results enable phase-controlled magnonic quantum information processing.
